Anatomy 1

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(a)

Anatomy

and

Physiology

by:

MARNIE G. SARONO

OBJECTIVES:

General Objective:

Within 3 successive periods, the second year students will be able to gain knowledge about human anatomy and physiology as well as identify the body parts and its functions at 70% level of accuracy.

Specific Objectives:

 Cognitive: The second year students will be able to: b.

c.

a.

d.

Differentiate anatomy and physiology of the human body

List the different systems in the human body

Describe the functions of the different systems of the body

Illustrate the anatomy of each body system

Affective:

 The second year students will be able to: a.

b.

Share the importance of human anatomy and physiology

Synthesize the connection of one body system to another

Psychomotor: b.

c.

 a.

The second year students will be able to:

Identify the specific body parts and its functions

Make a diagram of each body system

Locate the different organ systems using a model

HUMAN ANATOMY

 study of structure of body: the branch of science that studies the physical structure of a human body

PHYSIOLOGY

 study of functioning of living things: the branch of biology that deals with the internal workings of living things, including functions such as metabolism, respiration, and reproduction.

A. Integumentary System

Structures

Skin

Epidermis

Dermis

Apocrine gland

Subcutaneous tissue

Arrector pili muscle

Eccrine sweat gland

Melanocytes

Hair

Nails

(Continued)

Functions

What are the major functions of the integumentary system?

Protect

Fluid balance

Absorption

Synthesis of Vitamin D

Sensation/communication with external environment

Thermoregulation

Immunity

Excretion

B. Respiratory System

Functions

 Nasal cavity: warms, humidifies, and filters air

 Pharynx: passageway between nose and larynx, and mouth and esophagus

 Larynx: passageway; contains voice box

(Continued)

Functions

 Trachea: airway between larynx and bronchi

 Bronchi: airways with primary, secondary, and tertiary branches

 Bronchioles: transitional airways; some gas exchange occurs here

(Continued)

Functions

Alveolar ducts and sacs: functional units for gas exchange

 Pleura: serous protective lining of the lungs; reduces friction and helps maintain negative pressure

C. Cardiovascular System

Functions

 Heart: four chambers (right and left atria and ventricles), double pump

 Atria (right and left): pump blood to the ventricles

(Continued)

Functions

 Arteries: carry blood away from the heart

 Veins: carry blood toward the heart

 Ventricles: right pumps blood to pulmonary circulation; left pumps blood to systemic circulation

 Valves: AV valves (the tricuspid and mitral),

Semilunar valves (the pulmonic and aortic)

(Continued)

D. Gastrointestinal System

Function

What are the functions of…

 Stomach: churns food, intrinsic factor for B12, hydrochloric acid begins digestion

 Small intestines: primary site for digestion

 Large intestines: absorbs sodium and water

(Continued)

Function

What are the functions of…

 Liver: metabolism; produces bile, clotting factors; detoxifies drugs & alcohol; converts glucose to glycogen; stores vitamins

 Pancreas: produces insulin and glucagon, pancreatic enzymes

(Continued)

Function

What are the functions of…

 Gall bladder: stores and concentrates bile

 Spleen: stores RBCs, produces RBCs and macrophages

(Continued)

Function

What are the functions of…

 Bladder: stores urine

 Kidneys: remove wastes, help control B/P, produces erythropoietin

E. FEMALE GENITOURINARY

SYSTEM

Functions

What are the functions of…

 Mons pubis: subcutaneous pad over symphysis pubis for protection

 Labia majora/minora: folds of adipose and connective tissue that protect and lubricate external genitalia

(Continued)

Functions

What are the functions of…

 Clitoris: erectile tissue for sexual stimulation

Urinary meatus: opening to urethra

Skene’s glands: lubricate and protect

(Continued)

Functions

What are the functions of…

 Vaginal introitus: opening of the vagina

Vagina: muscular tube for copulation, birth canal, and menses

Bartholin’s glands: secretes alkaline mucus that improves viability & motility of sperm

Functions

What are the functions of…

 Cervix: end of the uterus into vagina

 Uterus: hollow, muscular organ; site for fertilized egg implantation; protects fetus

(Continued)

Functions

What are the functions of…

 Tubes: passage for ovum to uterus, site of fertilization

 Ovaries: produce ova, estrogen, and progesterone

 Kidneys: filter and excrete wastes

(Continued)

Functions

What are the functions of…

 Ureter: connects kidneys to bladder

 Bladder: hollow muscular structure; holds urine

 Urethra: connects bladder to urinary meatus opening

F. MALE GENITOURINARY

SYSTEM

Functions

What are the functions of…

 Scrotum: sac that contains testes

 Testes: produces sperm and testosterone

 Vas deferens: duct from epididymis to ejaculatory duct

(Continued)

Functions

What are the functions of…

 Spermatic cord: protective sheath around the vas deferens

 Seminal vesicles: produce 70% of semen

 Bulbourethral gland: secretes alkaline substance to neutralize vaginal secretions

(Continued)

Functions

What are the functions of…

 Prostate: produces 20% of semen

 Epididymis: stores sperm until it is mature

 Kidney: filters blood and removes wastes

(Continued)

Functions

What are the functions of…

 Ureter: tube connecting kidney to bladder

 Bladder: hollow, muscular structure, holds urine

 Urethra: passageway for urine

(Continued)

Functions

What are the functions of…

 Penis: male sex organ and urine elimination

 Glans penis: important for sexual arousal

(Continued)

Functions

What are the functions of…

 Inguinal area: canal for vas deferens from scrotum through the abdominal muscles, inguinal lymph nodes

REPRODUCTIVE SYSTEM

URINARY SYSTEM

G. MUSCULOSKELETAL SYSTEM

Functions

What are the functions of…

 Bones (206): structure; protection; act as levers; produce blood cells; store calcium

 Muscles (650): allow for movement and position; produce heat

(Continued)

Functions

What are the functions of…

 Joints: point of articulation of two bones; provide ROM

 Tendons: connect muscle to bone

 Ligament: connects bone to bone

(Continued)

Functions

What are the functions of…

 Cartilage: supports and shapes; acts as a shock absorber

 Bursae: sacs filled with synovial fluid; cushion and reduce friction between joints

Types of Joints

 Pivot

 Condyloid

 Ball and socket

 Hinge

 Plane/gliding

 Saddle

G. NERVOUS SYSTEM

Structures

Cerebrum

Frontal lobe

Limbic system

Occipital lobe

Thalamus

Cerebellum

Midbrain

Meninges

Cortex

Temporal lobe

Parietal lobe

RAS

Hypothalamus

Brainstem

Medulla

Ventricles

Functions

What are the functions of…

 Cerebrum: largest part of brain

Cortex: outer layer of cerebrum; controls most conscious processes

Frontal lobe: emotional expression, Broca’s area (expressive language)

(Continued)

Functions

What are the functions of…

 Temporal lobe: hearing, taste, smell, memory,

Wernicke’s (language comprehension)

 Limbic system: emotions, sexual arousal, behavioral expression, recent memory

(Continued)

Functions

What are the functions of…

 Parietal: sensory input

 Occipital lobe: vision and spatial relationships

 RAS: wakefulness

(Continued)

Functions

What are the functions of…

 Thalamus: clusters multiple sensory stimuli

 Hypothalamus: controls autonomic nervous system and pituitary gland

 Cerebellum: coordination, equilibrium

(Continued)

Functions

What are the functions of…

 Brainstem: involuntary survival behaviors; includes midbrain, medulla and pons

 Midbrain: visual, auditory, pupils, and eye movements

(Continued)

Functions

What are the functions of…

 Medulla: regulates heart, respiratory rates, B/P, and protective reflexes

 Pons: helps with respiratory function, facial sensation and movement

(Continued)

Functions

What are the functions of…

 Meninges: three layers (pia, arachnoid, dura); protect brain and spinal cord

 Ventricles: four cavities; capillaries produce and reabsorb CSF

(Continued)

END….

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